TM 1–1520–238–T–3
Change 4
10–13/(10–14 blank)
10–46 SIGNAL NAME:
FAIL HIS 2 (ACY)
MEMORY LOCATION: 000221
MEMORY DATA BIT(S):
4–19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Self–test failure flag (history 2).
REMARKS: Internal FCC self–test.
PASS:
If all digits on HOD are zero, refer to TM 1–5855–265–20.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
10–47 SIGNAL NAME:
FAIL HIS (ACZ)
MEMORY LOCATION: 000223
MEMORY DATA BIT(S):
4–19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Self–test failure flag (history 1).
REMARKS: Internal FCC self–test.
PASS:
If all digits on HOD are zero, go to paragraph 10–48.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
10–48 SIGNAL NAME:
FAIL HIS 2 (ACZ)
MEMORY LOCATION: 000224
MEMORY DATA BIT(S):
4–19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Self–test failure flag (history 2).
REMARKS: Internal FCC self–test.
PASS:
If all digits on HOD are zero, refer to TM 1–5855–265–20.
FAIL: Location of fault: replace FCC (TM 9–1230–476–20–1).
